The eagle and three of Suger's other liturgical vessels Queen Eleanor's vase and King Roger's decanter, both of rock crystal, and a sardonyx ewer ended up in the Galerie d'Apollon at the Louvre.
32.
Three aspects of the painting can be attributed to an antique sardonyx cameo and a 15th-century relief from the circle of Donatello, available to Michelangelo in the Palazzo Medici : the circular form, the masculinity of Mary, and the positioning of the Christ Child.
33.
Arranged in a small jewel-box gallery, these include a 13th-century bronze aquamanile _ a ceremonial, usually figurative pitcher _ in the form of a horseman, and the chalice of the Abbot Suger of Saint-Denis, a fluted sardonyx cup from from Ptolemaic Egypt that the abbot had mounted in jewel-studded gold.
34.
A : January, garnet; February, amethyst; March, bloodstone ( aquamarine added later ); April, diamond; May, emerald; June, pearl ( alexandrite and moonstone added ); July, ruby; August, sardonyx ( peridot added ); September, sapphire; October, opal ( tourmaline added ); November, topaz ( topaz quartz added ); December, turquoise ( zircon and lapis lazuli added ).
35.
He made a tryptich of sardonyx cameos to celebrate the family of the Queen Margherita of Savoy : the first depicts the monument raised in Turin for the Prince Ferdinand, Duke of Genoa ( Queen's father ), the other an equestrian statue of King Victor Emmanuel II of Italy, father of the then present king; and the third medal was the portrait of the then Prince of Naples, later King Victor Emmanuel III of Italy.
36.
By the 16th century carved and engraved gems were keenly collected across Europe for dedicated sections of a cabinet of curiosities, and their production revived, in classical styles; 16th-century gem-cutters working with the same types of sardonyx and other hardstones and using virtually the same techniques, produced classicizing works of glyptic art, often intended as forgeries, in such quantity that they compromised the market for them, as Gisela Richter observed in 1922.
37.
Taking the majority view of scholars in regard to the identity of the gems, and including the implication from the Book of Revelation that the " Onyx " at the end of the fourth row was a " Sardonyx ", there are four colours red, green, yellow, and blue each represented by a clear gem ( red Carbuncle, green Heliodor, yellow Chrysolite, blue Amethyst ), an opaque gem ( red Carnelian / red Jasper, green green Jasper, yellow yellow Jasper / yellow Serpentine, blue-Lapis Lazuli ), and a striped gem ( red Sardonyx, green Malachite, yellow pale golden Agate, blue sky-blue Agate ) . these colours roughly correspond to the sensitivities of the retinal ganglia process colour by positioning it within a blue to yellow range, and separately positioning it within a red to green range ).
38.
Taking the majority view of scholars in regard to the identity of the gems, and including the implication from the Book of Revelation that the " Onyx " at the end of the fourth row was a " Sardonyx ", there are four colours red, green, yellow, and blue each represented by a clear gem ( red Carbuncle, green Heliodor, yellow Chrysolite, blue Amethyst ), an opaque gem ( red Carnelian / red Jasper, green green Jasper, yellow yellow Jasper / yellow Serpentine, blue-Lapis Lazuli ), and a striped gem ( red Sardonyx, green Malachite, yellow pale golden Agate, blue sky-blue Agate ) . these colours roughly correspond to the sensitivities of the retinal ganglia process colour by positioning it within a blue to yellow range, and separately positioning it within a red to green range ).
